This week, for the third year in a row, we had the opportunity to participate in European Car Magazine's Tuner GP. This time around, instead of bringing a supercharged M3 like we usually do, we brought our lighter and more nimble supercharged Z4M. The three day even consisted of dyno runs, drag races and timed laps at Streets of Willow Springs Raceway. Competing against us were cars ranging from an 80's Porsche 911, a super powerful Audi TT RS and even a nearly identical supercharged Z4M. We took plenty of photos and some video to give you an exclusive sneak peek, but be sure to grab the European Car issue when it hits stands to see all the results! Enjoy.